Water tubular boiler for locomotives.



P. J. HEALY.

WATER TUBULAR BOILBR PoR LoooMoTIvEs.

APPLICATION FILED AUG. 21. 1913.

Patented sept.l i, 1914 7 SHEETS-SHEET 1.

U L1 l Bg M witness? l LQ l P. J. HEALY. WATER TUBULAR BOILBR FOR LOGOMOTIVBS.

APPLICATION FILED AUG.21,1913.

1,109,526. Patented Sept. 1, 1914.

7 SHBBTSSHEET Z4 Gttornegs witnesses wf' ,X

P. J. HEALY.

WATER TUBULAR BOILER POR LOGOMOTIVBS. APPLIGATIGN FILED AUG. 2l, 1913.

1,109,526, Patented Sept. 1, 1914 :Srwenfor a l. (Zttornegs P. J. HEALY.

WATER TUBULAR BOILBR FOR LoooMoTlvs.

APPLICATION FILED AUG.21. 1913.

1,109,526. l Patenteasept. 1,1914.

Juventor witnesses P. J. HEALY.

WATER TUBULAR Boum Pola. LOUUMOTIVES.

APPLICATION FILED AUG.Z1,1913.

Patented Sept. l, 1914.

'1 SHEETS-SHEET 5.

1.. @.idz@ Q D@ d@ @u @f @@@QWAQQ lf/v witnesses P. J, HEALY.

WATER TUBULAR BOILER FOR LOGOMOTIVES.

APPLICATION FILED AUG. 21, 191s,

Patented Sept. 1, 1914 7 SHEETS-SHEET 6.

WW. um

witnesses ff P. J. HEALY.

WATER TUBULAR ROLLER FOR LOCOMOTWBS.

l APPLICATION FILED AUG. 21, 1913. V 1,109,526 Patented Sept. 1, 19M

7 SHEETSHSHET 7.

Ctornegs fire bed, showing part of the grate removed and disclosing means for dropping ashes through the bottom of the boiler. Fig. 7 is a partial section taken on line 7-7 of Fig. 1. lEig. 8 is a section of the vertical tubes forming the vfront plate of the boiler, as seen in Fig. 5. Fig. 9 is a vertical transverse section of a modified form of boiler; Fig. 10 is a front elevation of the boiler shown in Fig. 9; Fig. 11 is a fragmentary sectional view of the two adjacent tubes; Fig. 12 is a view partly in section showing a door and the manner of rolling the tubes into the ring .forming the door. Fig. 13 is an enlarged fragmentary sectional` view of the top tube and the connecting barrel, showing tubes rolled therein.

Likerreference characters designate corresponding parts throughout the views.

The rear end of the boiler is formed of a substantially rectangular tubular ring 1, shown in elevation in Fig. 4, and there are extending between the bridge 2 and bottom 3 of said ring 1, a plurality of vertical tubes 4, which have steam-tight connection with the bridge and bottom ot' the ring. These tubes 4 are preferably placed close together and may touch it desired, or there may be lett therebetween a space to allow for enpansion and contraction of the tubes. These tubes 4 practically cover the rear end of the boiler, and they may be broken away in any approved manner to provide for a lire door 5, which may be hinged to flanges 6 cast integral with certain of the tubes 4. Of course, in the event of very large boiler construction an additional door may be added beside the one already shown at 5 to admit of the double working of the tire bed. The fore end of the boiler is provided with a ring 7 similar to the ring 1, and has extending between the top and bottom. thereof a plurality ot tubes 8, but it will be noted that these tubes 8 are spaced and are not close together, as in the case of the tubes 4 form ed at the rf ar of the boiler, for the reason that it is desirable to have the smoke, gases and heat pass through said front end into a smoke box 9. These tubes 8, and also the tubes 4, are preferably made seamless and may be made of mild steel, wrought iron, or any other metals which are found -to be satisfactory and which have sufficient elas ticity 'to admit of their use as water tubes.

Between the front and rear ends of the boiler there is proidded a plurality of sets of tribes, each set of tubes comprising th'ree tubes cast on one piece, and having their sides parallel so that when the various sets are assembled they will present such a surface may be conveniently covered after the. 'fashion at present in use in locomotive These sets, indicated generally at 10, are inter-connected by means of a number of water holes 11, which pass through.

ling o incassa the metal, connecting adjacent tubes. The two ends of the sets of tubes are provided with flanges 12, so that the end 1, which. is provided with a iange 13, may be connected to the end set and that the rinfr 7 which is provided with a flange 14 may beconnected with the other end ofthe sets, and also that the individual sets of pipes may be con:

integral -with the sets or sections 1t).

Hinged to flan es 17 formed on the tube 172 is a door' 1% which may be controlled by any suitable rod 17* for regulating the draft in the fire box '15. 1t desired, of course, suitable grating may be provided against which the lre may be banked to prevent assage of the saine through theopenthe door 17 3 when the latter is thrown out. The remaining sections are made or less length than the rear end sections and provide a compartment in which additional .tubes to be described hereinafter may be located. As shown at 18, certain o1' the sets are so formed as to lie somewhat beneath the top line of the sets, so as to provide a space for the usual steam dome 19. These reduced sets 18 may be secured to' the adjacent sets by means vof flanges 2O in a manner similar to the means used for connecting adjacent section As shown in igs. 1 and tending inwardly from the tubes 4 formed at the rear of the boiler, numerous hori- Zontal tubes 2l, the outer ends of which are rolled in the rear of the boiler or are arranged in parallel layers, the inner ends of the tubes forming any one layer being connected by means oi" a horizontal tube 22 which may be somewhat larger thanthe tubes 21. .These tubes have their ends formed in the rings of the sections 10, the particular construction shown in the drawings being to connect these tubes 22 to the section adjacent the reduced section 18. By means of these tubes 22 all of -the tubes 21 are connected to the sections 10, while the said tubes are also connected to the ring 1 by means of the tubes 4. I

' Each of the vertical tubes 8 formed in the fore part. of the boiler has extending rearwardly thereiron'l a plurality of horizontal tubes 23 which lie substantially in vertical planes, and it will be seen by referring to Fig. lthat a number of tiers of these tubes 2, there are exsov izo

i, ioeee 23 is provided. The rear ends of these tubes are secured in vertical connecting pipes 24 which pass from the bridge to the bottoni of oneof the sections 10, although of course, said pipes could just as easily pass between the corresponding parts ot' one of the sections. i8. By means of the pipes. 24 and tubes 8, the tubes 23 are connected to the Sidev and end tubos `forming` the shell of the m boiler. As before stated, the tubes 8 are smoke and gases, and it will also be seen by referring to Fig. 8 thatthese tubes are iiattenedso as to have the requisite cross sectionalI area rv'ithout unnccessarily obstruct ing' the passage ot` the gases. The. vertical. tubes 4 and 8 at the rear and 'iront of theI locomotive rcspectively, and thc vertical conmeeting pipes 2l, and the horizontal tubes 22 are all provided with vscrew plugs 25 which fit in threaded openings :2G formed in the various tubes and pipes, said openings being somewhat larger than the diameter oiv the tubes, so that the latter may be inserted in place after the sections l0 `and 18 have been assembled, and also admit-oi the ire-l quent cleaning which is necessary in tubular "`boilcrs,l I i i In order to provide inter-communication between adjacent sections l() and 18, there is provided a pluralit)r of coupling tubes 27, `which are provided 'at `numerous points throughout the interior of the boiler and connect tubes oadjacent sections or sets of tubes, so that the Water offsaid adjacent sets may be 1n communication and all of the Water throughout the boiler be in conr municatlon to provide for necessary circulation required to generate the' steam. The

lunder sides of the bridges of' the sets or sections l0 are providednvitlr additional couplingsQS similar to the couplings 27, these 'couplings 28 being provided to ai'ord a steam connection between the bridges of 4.5 all of the. tubes forming the shell of the boiler. Any means may be provided for conveying the dry steam ot the tubes to the steam dome i9, the inethod shown in the drawings, particularly F ig. l., being to prov vide a plurality of steam pipes 29. Extending frein the steam dome is a steam chest 3U which has 'formed on the outer end thereof' a headbl provided with pertorations 'for receiving a number ot sinall tubes 32 which es start from .the 'head 3l and bend back around t'hetubcs 23, down. and outl of the tront'of' the boiler, through' the smoke loox 9, into a steam chest 33 which is in communication with the cylinder 34 of the engine,

6o said cylinder being shown diagrammatically. By nic-ans oithese pipes 32, it Will -be seenthat the dry steain passes from the sten-ni chamber 30, the saine. will be su er-heated in the tubes sothat super-heated steam -niay be used in the cylinder. As isy tained by having a pipe spaced so as to admit of the passage otA draft maybe ob- 'leading lroin the exhaust port of the cylinder located just beneath the stack 36, so that the jet may pass troni the smoke box and in thisl Way set up the draft. A throttle vstein 3T fis shown as entering the steam deine 19 and adapted to ceperate with the orice of the steam chamber lin the usual manner, the saidstein 37 passing rearuf'ardlyinto a cab secured to the end of the boiler, but not shown in the drawing.

As gases arise from the grate lo 'the saine `will pass upwardly and aroundl the Waiter tubes 2l und will then pass through the space 38 located between the vertical pipes 2l and thc horizontal tubes 22, 'from whence they will pass around tubes 23, pass the coininon practice, a forced 4tubes 8 into smoke box il, and out of kthe stack 3G. T he gases which serre to heat the tubes 2o are also eifective in heating the supcrhcater `tubes 32. rl"he Water heated in the several tubes will pass to the shell formed by the sections of tubing and will pass between such sections by means of the couplingtuhes 27. By reason of the shell foi-ined as-descrilied there will be a large heating tubes which may be drawn upon to supply steam when any heavy demand is made upon the steani chamber. las in stationary boilers in common practice washout plugs 39 may be provided at various points on the end rings l and 'i'. It Will be noticed that the Water in the side tubes forming the shell may Vary considerably before the Water ,passes out of the tubesll, and in ordinary running conditions the lower of the tubes 2l will be filled with Water so that practically none of the iiaines from .the fire bed will strike the empty tu es.

It is obvious that a boiler constructed after the form disclosed does not need a crown sheet, noi' is there any .need for stay bolts.` Ot course, the design of the tire bon may be such as is required tor any particular construction of locomotive and further the water tubes may be multiplied to give` the.

`proper heating surface for absorbing practically all of the heat which is given by the lire, and Jfurther the tubes will preferably be `formed of such material as will resist the wearing of the cinders. The spacing of the tubes 8 .may be regulated to retain within the boiler the gasesuntil their usefulness has been exhausted.. In order to give a finished appearance to the boiler', there may .be placed around the various tubes a suitable portion 'of heated water surrounding the.v

lagging l0 and the rear end of the boiler may be covered and provided with tli.ei1si 1al equipment.

y Where used 'in localities lin which` tlie water is muddy or carries minerals likely p to oorrode and colleetin pipes it will be neaeary to. eonstruety the connecting tubes preferred form of the invention. As shownin Fig. 9 the upper tub-h has two portions, the forward portion l1 being of less diameter than the rearportion 42, but the forward portion is made sulliciently large to act as a I design ci he boiler having a bent portion an air-tight connection reservoir 'for receiving a considerable arnoun oi steam. The lower tube 1s shown at 43, and may be made to conform to the general et which terminates in a horizo'htalend 45, the manner of making the tube as illustrated in the drawings, is to` have the saine continuous, but it is to be 'understood that both the barrels t3 'and the upper tubes may be made in sections and joined in any` approved manner. 'lhereis provided across the end of the boiler a plurality ci tubes t6 which are sufficiently close to to assist the draft within the boiler, while extending forwardly from said tubes 46, and preferably slanting slightly, are barrels 47, the forward ends oi' which are received by corresponding barrels 4-8, which pass vertically between the upper and lower barrels.

' 'lhe body of the boiler is composed of ad' plurality ot U-shaped tubes 49, the'ends of which are bent. slightly and reduced as at 50 to b e received by Lthe barrels ofy the boiler. The manner of connecting the 4tubes 49 to the barrels, is shown in Fig. 13 where the reduced ends 50 are rolled as at 5l, into the barrels, access being had to the reduced ends through an opening 52 in the top of the barrel. There is one of these openings 52 above each pair of U-shaped tubes, and these openings are normally closed by plugs 53 which may be removed when it is desired to insert a new tube or to clean outthe boiler or for any other A conncctiqp between the tubes '4,9 in the barrel. The enlarged barrel l2 may be suiliciently large to permit the tubes to be rolled l .j adjacent tubes may into thev barrel from the interior, in which 1t will not be necessary plugs 53. The lower barrel has the lower ends connected thereto in a manner similar to the connections in the upper barrel so that both ends of the tube e9 are sealed within the barrels and each of the U-sh`aped tubes is in comrnunicznsionv with all the other v so that as the water ing bent pipes 64 which are form substantially .the tubes. 5e,

reason to have access to the Y to supply thel f incense tubes forming the sides ci thefboiler. The

forward set of substantially horizontal tubescomprises tubes 5ft having parallel sides the ends of said tubes being connected to different side tubes so as to assist the circulation of the boiler. lli desired, the loop ends oi the tubes fl may lie-secured by meanso'l braces 55 to the vertical tubes t8 forming the *forward end of the back set of su'bstan tially horizontal tubes, so that the outer ends of the forward tubes are loosely held to take up any jarring due to the running oi' the locomotive. Certain of the 'forward tubes 5ft are seoured'within the foremost vertical tubes 56 which are spaced suf-- liciently to allow smoke to pass from the fire bon to the smoke box, indicated in dotted lines at 5'?. The manner of operation and the precautions to be taken mentioned in connection with practically the same as in the modifie-'l Ecrin, is heated steaniwill col lect in the separate U-tubes and be led to the upper barrel, the enlarged portion of which. is in direct contact a throttle 59 controlled by means o levers 60, the movement of whichv will lead steam through pipe 61 to steam chest 62, which is n connection with a distributor 63. Lead led in and around and terminate ultimately in the steam chest 65 adjacent one ofthe c, linders of the engine. These tubes'G/t iorin heating tubes similar to those shown in the referred form of the invention.. l

In order that the draft may be regulated there is mounted a plurality of venes Gl pivotally connected as at 67, to opposite sides of vanos may be regulated, there is arod 68 connected to each of the venes whichA is also pivotally connected to a controller rod 59 pivotally mountedj'upon a rocker'll). lt is obvious 'th vt as the controller arm 69 is moved forward and backward', the varies crease or decrease the draft. n

's shownin Fig. l1, cachot/the U-tubes 49 has extending therefrom, two enges 7l and 72 which are connectedto'theoutside oi the tubes 49 in such a. way; as to form slots 73 for spacing` adjacent tubes so that the gas from the combustion can surround. the greater part of the tubesgcontaining the water 'and t ereby increasetlie `heating surface. By means of these'iianges 7l and 72 be connected together as -by bolts or rivets `7/l, although l wish it to be understood that as in the preferred form, there may be cast together several tubes which, may be connected in the manner similar to that shown in Figs. 1 to 8 of the drawings. f L

The manner of rolling the back Atubes 46 the-boiler and in order that the the preferrederrn are with a dome 58 having from the distributor-.63, are numerous will be opened and closed respectively, to 1nnieuwe Y into the ring 75, forming thedoor for the locomotive is shown in Fig. l2, where the reduced ends 76 of the tubes 46 are rolled through a normally closed opening 77 in a manner similar to that described in connection with the barrels and U-shaped tubes. Any suitable doors 78 ma'y be pivoted to close the door normally as in the preferred form.

Any method for assembling the various tubes may employed when' it is desired to build the locomotive after the manner of the present invention, and l prefer not to mention any particularl method of assembly.- i There could be arranged a connection of pipe on the front of the dome to connect the throttle with a number of small pipes to convey steam along the top of the boiler to steam chests. A. number of super-heating "pipesas shown may be provided to run be- 20. tween thefront perpendicular waterltubes ofthe boiler, preerably'jthose perpendicular pipes 'near the center o'f-'tlie forward end of tha-boiler.

What I claim is L j il. locomotive boiler, the shell4 of which 'is formed of'sections'ofwater tubing, means for interfconnecting said water tubings, lmeansfor.locking the sections to each other, 'and meansconnecting`l 'the tubingsto a commonjreservoir `of.' steaiue'4 2.122; locomotive boiler, the shell of which is 'formed 'offsections',v said vsections com` prisinginterfconnecting tubes, means for se.- -curing said sections'together, 'means for in- .ter-communication between the sections, and a common'reservoir o-steam' in connection with the said sections.l v

3, A locomotive boiler, the shell of which is formed of 'waterftubes7 the water tubes 40 of one end of said br-iler-beingdeeper.than

, the remaining tubes,"a fire-box formed in `the deeper tubes,means for inter-connectins, said tubes, and a common steam reservoir in. communication Withsaid tubes.

y 4,5 4. A locomotive boiler, the shell which' is formed of'water tubes, tlie'rear end of said boiler being substantially', closed, the water tubes at the rear end. being4 deeper than the remaining tubes: to provide a fire-box, 'a

5@ draft regulator pivotallv connected to the bottom of the boiler adjacent the lforward end ofthe deeper water tubes andadapted to close the air connection between the tire box and the rest of thelocomotive, means for inter-connecting the tubes, and a common steam reservoir in connection with said tubes.

5. A locomotive boiler, the shell of which is formed of water tubes, certain of said 6o tubes being deeper'than the remainingtubes, in order to -form a lire box, the bottoms oi' said deeper tubes being contracted to leave spaces therebetween, means 'for inter-connectingthe Water tubes, and a common steam reservoir in connection with said tubes. l

6. A locomotive boiler provided with a substantially closed vrear end, the shell of which is formed 'of water tubes, certain of said tubes being deeper than the remainin tubes to form a tire box, the bottoms of sai 7,0 tubes being reduced to provide spaces between said tubes, means defining a draft regulator adapted to close air passage between the boiler and the atmosphere through thc space between the deeper tubes and the rei aiming tubes, means for inter-connecting the tubes, and means for connecting,- said tubes to a common reservoir.

"e", il locomotive boiler, the shell oi' which is formed of water tubes, the tops of cery tain ot said water tubes being lowerthan the remaining tubes'to dettine a space, a steam dome located within 'said space and ccnnected to tbe water tubes, and means for interconnecting the said tubes. S5

8.1n a locomotive boiler, a plurality of .ring shaped water tubes constructed to form the shell of the boiler, said water tubes passing between opposite sides of the rear ring shaped tube, auxiliary water tubes connected to said straight tubes, means for connecting adj acent ends of the auxiliary water tubes to the ring shaped water tubes, means 4or inter-connecting the ring shaped water tubes, and a common steam reservoir in coma5 munication with the ring shaped tubes.v

A locomotive boiler, the shell ci' which y is formed of a plurality of 'ring water tubes, 'vertical water tubes connecting opposite sides of the rearmost of said ring tubes and 109 substantiall f filling the space between the sides of sai ring tubes, auxiliary tubes connectcd to said vertical tubes, means for connoctinzgr said auxiliary tubesto certain of the ring` -watertubes, means for inter-connecting the ring water tubes, and a 'steam reservoir in communication with the latter tubes.

l0.v et locomotive boiler, the shell of which is yformed of ring water tubes, the real-most of said ring tubes being provided with a ilo plurality of, vertical .water tubes, parallel layers of auxiliary water tubes connected to said vertical tubes, means for connecting the several layers to the ring water tubes, means for inter-connecting 'the said water tubes, 115 and steam reservoir lin communication. with the latter tubes.

11. Il locomotive'boiler, the shell of which is formed of a plurality of ring water tubes, one end of said boiler bein-g substantially lao closed, the ring at the other end of said boiler having water tubes connecting the opposite sides thereof, auxiliary tubes extending from said. spaced tubes, means for connecting the auxiliary tubes to the ring tubes, means for inter-connecting the tubes, and asteam reservoir in communication with the tubes.

l2. A. locomotive boiler, the shell of which is composed of a plurality of ring Water 13o moete@ tubes, ineens ter inter-connecting seid fine tubes, a reservoir of steam connected to seid tubes,'and e plurality of sinuous superlieuting steam tubes connected to seid steam reservoir und located within the shell.

13. A locomotive boiler, the shell of which is formed of ring water tubes, straight water tubes extending perpendicular totheplanes oiA said ringed tubes and locatedV within they boiler and communicating with oertein of the ring tubes, means of inter-communicetion between the ring' wetertubes, und u steam reservoir in communication with tbe letter tubes.

14. A steam boiler formed of e, plurality of adjacent rin water tubes, other 'water tubes located within said ring water tubes und connecting therewith means for intel'- connecting the ring tubes, and a steam reservoir in communication with the letter tubes.

l5. A locomotive boiler, the shell of which is formed of u plurality of ring tubes, other tubes located within said ring tubes and connecting therewith means for inter-connecting the ring tubes,v e steam reservoir in connection with the ring tubes, and superheated sinuous steam tubes leading from the steam reservoir between the tubes located between the ring tubes, and leading to a steam chest.

16. A boiler the shell of which is constructed of water tubes, a tubular member constituting e barrel connecting the upper lportion of seid water tubes and e second tubular member constitutino e barrel eonmeeting the lower portions oi said tubes.

In' testimony whereof I aiX my signature in presence of two witnesses.

. PATRICK J. HEALY.

Witnesses:

G'. WARD KEMP, WM. R. HOUGHTLING. 

